Radiator construction.



Patented Mar. 11, 1913 2 SHEETS-SHEET 1.

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RADIATOR CONSTRUCTION.

Specification of Letters Patent.

Patented Mar. 11, 1913.

Application filed May 3, 1909. Serial No. 493,545.

2'0 at! whom. it may concern:

.Be it known that l, YLltUliNlUS J. .Mnro, a

citizen of the United btates, and a resident of new haven, in the county of New Maven and btate of t) onnect1cut, have invented a new and improved itauiator LJUUSLLUUMUII, 1

of which the following is a full, clear, and exact description.

My invention relates to a new and nofpro ved' radiator construction.

'1 he ob ect or the invention is to provide a simple, yet strong and durable construction for the enective cooling or nuios, the coin pieteu structure being or particular utility when used 111 comiectionwitn a water 0001- ing system for cooling internal combustion engines.

in the accompanying drawings, Figure l is a rear elevation partly in section of a complete radiator constructed to embody my. invention. big. 1 is a vertical section on thd line 1 rior of the feeding chamber. i lg. .3, is an edge View of a detail. big. 25 is an end view or what 1 will term one unit of the radiator honeyoomb. 1 1g. t is a front elevation of part of the radiator honeycomb the same being relatively enlarged, and being broken aw'ayat certain points. big. is a section on tne'line 5-5, rig. 4. big. o is a top plan view of a group or radiator units before completion, looking down through the "water passages between the same.

'1 indicates a casing of any suitable formand material, the same constituting ll]. effect the main frame; 2 is a feeding chamber cated in the upper part of the casing l and into which flows the water to be cooled.

3 is the supply pipe of a water cooling system.

4 is a distributor chamber having large number of perforations 5-5itherein, said 1 preferabl evenly to the upper ends of the distributor operating to distribute the water passages wherein the Water is cooled.

6 is an inlet pipe provided at the top for the purpose of-pcrmittiug the Water c0oling apparatus to be filled with Water.

7 is a cap for the pipe 6. I

8 is an overflow and vent pipe which extends partially up into the pipe 6, t e lower end passing outthrough the Wall of'the radiator at an suitable point, and preferably leading own to. a pointnear the bottom. This vent pipe fur- 1, rig. 1, showing the integ nishes an outlet or overflow in the event an excessive amount of water is poured into the radiator and it also furnishes a vent for any Q the water is overheated, as by overheating I the engine.

; 9 is a draining chamber spaced apart l from the feeding chamber 2 by suitable paltitions.

10 is an outlet pipe constituting part of the cooling apparatus and which may connect the draining chamber 9 With'the jacket of an engine.

The radiator element proper, or honeycomb, (the construction of which will be hereinafter described) connects the feeding chamber 2 with the draining or the receiving chamber 9, and includes a multitude of straight unobstructed upright fluid passages down through which the fluid to be cooled is permitted to freely flow. The walls of these water passages are made extremcly thin and are separated by h0riz0ntul air passages running fore and aft through the radiator, whereby said Walls may be effectively cooled to in turn cool the water passing down between them.

In Fig. .1 have shown four tiers or blocks of agseinbled radiator units, each block beingscparatcd by preference, in such a way as to 'provide three horizontally arranged water passages communicatin with all the vertical passages. The number of' tiers of assembled units is immaterial in a broad sense, although for the purpose of manufacture, and in certain practice, it is preferable that there should be two' or more spaced tiers depending upon the size and the particular use of the radiator. Each railiator block is made up of a'number of units, a single unit being shown in Fi 3. A unit is formed by taking a strip 0f t in metal of suitable length and width, and first providing thercina number of plaits. These plats may be formed by such a machine as set forth in United States Letters Patent 1,012,568 of Dec. 19, 1911. In operation this machine manipulates strip of metal step wherein a slight U-shaped bond, as shown at the left of said figure, is first formed. The next bend to the right is V-shaped, while the next bend to the right, thoughV-shapcd, is harpcr than the former. When the metal is in this condition, the walls of the sharper strain which might accumulate in the event.

by step in the manner shown in Fig. 2,

--of the proper length is provided with a suf- V-shaped bend are pressed tightly together to form a-closed plait, as shown by the two plaits at the right hand end ofFig. 2. The importance of tightly closing the plaits will later be explained. When a strip of metal ficient number of closed plaits, said strip is bent back upon itself as shown at the left hand end-of Fig. 3, so as to bring the plaits into alternate registry, the edge of each plait on one wall of. each unit bearing against the opposite wall of the unit so as to support the same against collapse and steady it against vibration. The two ends of each strip of plaited metal are preferably formedand connected as follows :One' of the ends is turned back upon itself at the base of the next "to the last plait, as shown at 11, so to present the open edge of the end plait in position to receive. the opposite end 15 of the strip. In this manner the ends of the strip are locked together. It isobvious that the plaits may be formed in only one of the two side walls instead of in both, as shown. When a sulhcient number of units have been formed to build up a single tier for the radiator, said units are placed in a suitable holder, and are separated or spaced apart by means of wires l212 located close to the opposite ends of said unit sections, (see Fig. 6,) said Wires 1212 spacing said units apart sufiiciently to provide the vertical water passages before referred to. When the wires are in place each end of each group of units is dippec in a bath of solder, which firmly binds together all of said units, and the wire spacing elements into one substantially' homogeneous structure. Then two or more tiers of units are used, horizontal spacing. wires, as indicated at, Ill-44 (see Fig. 5) are preferably provided between each tier, so that when the solder is applied as previously referred to,all of the units, together with the vertical, as Welles the horizontal. spacing wir es will be firmly bound together at the front and the rear of the honeycomb, to provide both the verti cal and the horizontal water passages, when the honeycomb structure, thus described, is finished the same is mounted within the casing 1, and soldered "Itheretoi entirely around its edges in such a manner as to prevent leakage of water, but nevertheless so as to permit the water to freely flow entirely over the upper end of the radiator down through the vertical passages-and into the receiving chamber 9 in the lower end of the radiator. r

1$--l7are partitions separating the feeding chamber 1 from the draining chamber 9.

18-48 are trunnions by which the radiator may be supported.

19 represents a rod or screw by which the upper part of the radiator is steadied from,

fore and aft movement.

one scam to be soldered to complete a sin" base of one plait, three thickness In Fig. 1 I have shown the four corners at the. honeycomb structure cutaway din onally by reason of the shape of the radiator frame or casing. W hen such corners are cut away, it is obvious that in finishing up same, care should be observed to leave the upright water passages free-and unobstructed, so that water in the upper part of the radiatorcan freely llow down through the upright passages between all the radiator units.

I have heretofore called attention to the importance of closing tightly together the two walls of each ,plait. By so doing, I ahsolutely prevent dirt or foreign substance from accumulating in or adiacent to the upright Mater passages, foxy. as will be seen, were these walls left open or-spaced apart, a multitude of short horizontal shelves or pockets would thereby be formed, which.

would not only retard the circulation, but it would in a shorttime, fill up with foreign matter to such an extent as to not only. encroach upon theupright passages and the passage of air through the honey-- comb than would be the case if the of each plant were separated, inasmuch 'in exact proportion to the extent that the. 'plaits are unnecessarily thickened, is the cross-sectional area. of the airpassage reduced in a honeycomb of given size.

The method of formingeach unit, and.

the construction thereof, possesses superior advantages in that, by doubling a sheet of plaited metal upon itself, it provides on unit, thereby greatly reducing the den leakage. Again, by doubling the in the end of each unit back upon it elf;

s s or are provided instead of two, which added stiffness and strength, so that when a number of tiers of units are arranged in block, the end walls Wlll be found to be sufliciently strong to resist the pounding tendency upon the horizontal spacing and supporting wires 14-14L I The foregoing and other advantages will be apparent to any one skilled in this art and familiar with the use and requirements of devices of this character.

W-hile I have shown my invention in its preferred form, it should be understood that:

i a: greater cross-sectional area is provided for the inside plaits to brin design and structure it may be modified 1 in various ways Without departing from the scope or the following claims.

What I claim is:

" Ii -In a radiator, a unit "formed of a strip of metal having plaits therein, said strip being folded intermediate its ends to form a box-like structure and to bring the plaits between the side walls thereof, said plaits extending entirely across the space between said side walls to support both of the same 'against collapse and-vibration, one'end otf s'aid'strip being bent at the base ofone of 'rthe end plait into a plane between the walls of said unit with the base of said plait facing outwardly, the

' opposite end of said strip extending into the last mentioned plait to form an mterlocking joint.

A radiator unit construction comprising two oppositely arranged spaced sheet metal walls, plaits formed in one wall and extending to and supporting the other wall,

a pocket formed in one Wall, a portion of.

the metal of the other wall extending into said pocket to form an interlocking joint.

3. A radiator unit comprising two oppositely arranged spaced 5 eet metal walls,

plaits formed in one wall and extending to and supporting the other Wall, a pocket formed in one wall, said pocket extending transversely of said strip and openin toward the opposite wall, a portion of the metal of the opposite wall being extended into said pocket to form an interlocking joint.

4.. A radiator unit construction comprising two oppositely arranged spaced sheet metal walls, plaits formed in one wall and extending to and supporting the other wall,

a pocket formed in one wall, a portion of the plane of the adjacent parts of the side walls, said joint being parallel with said plaits.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

VIRGINIUS JULIAN MAYO.

Witnesses WM. A. WRIGHT, Harrow WnIoI-rr. 

